testss

Library/PackageCache/com.unity.render-pipelines.universal@11.0.0/Shaders/Utils/Sampling.shader

@@ -0,0 +1,47 @@
+Shader "Hidden/Universal Render Pipeline/Sampling"
+{
+    SubShader
+    {
+        Tags { "RenderType" = "Opaque" "RenderPipeline" = "UniversalPipeline"}
+        LOD 100
+
+        // 0 - Downsample - Box filtering
+        Pass
+        {
+            Name "BoxDownsample"
+            ZTest Always
+            ZWrite Off
+            Cull Off
+
+            HLSLPROGRAM
+            #pragma vertex FullscreenVert
+            #pragma fragment FragBoxDownsample
+
+            #pragma multi_compile _ _USE_DRAW_PROCEDURAL
+
+            #include "Packages/com.unity.render-pipelines.universal/Shaders/Utils/Fullscreen.hlsl"
+
+            TEXTURE2D_X(_SourceTex);
+            SAMPLER(sampler_SourceTex);
+            float4 _SourceTex_TexelSize;
+
+            float _SampleOffset;
+
+            half4 FragBoxDownsample(Varyings input) : SV_Target
+            {
+                UNITY_SETUP_STEREO_EYE_INDEX_POST_VERTEX(input);
+
+                float4 d = _SourceTex_TexelSize.xyxy * float4(-_SampleOffset, -_SampleOffset, _SampleOffset, _SampleOffset);
+
+                half4 s;
+                s =  SAMPLE_TEXTURE2D_X(_SourceTex, sampler_SourceTex, input.uv + d.xy);
+                s += SAMPLE_TEXTURE2D_X(_SourceTex, sampler_SourceTex, input.uv + d.zy);
+                s += SAMPLE_TEXTURE2D_X(_SourceTex, sampler_SourceTex, input.uv + d.xw);
+                s += SAMPLE_TEXTURE2D_X(_SourceTex, sampler_SourceTex, input.uv + d.zw);
+
+                return s * 0.25h;
+            }
+            ENDHLSL
+        }
+    }
+}